Messing, C.; Gondim, A.I.; Markello, K.; Poatskievick Pierezan, B.; Taylor, K.; Eléaume, M. (2025). World List of Crinoidea. Heliometra AH Clark, 1907. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=123353 on 2025-07-17
basis of recordClark, A. H., Clark, A. M. (1967). A monograph of the existing crinoids. <em>Bulletin of the United States National Museum.</em> (82): 1-860.[details]
Other
additional sourceHess H, Messing CG (2011) Comatulida. In: Hess H, Messing CG, Ausich WI. Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea, vol. 3. University of Kansas Press, Lawrence, Kansas, pp. 70–146.[details]
additional sourceHansson, H.G. (2001). Echinodermata, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i>. 50: pp. 336-351. (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Centrodorsal low hemispherical; cirrus sockets 45-100. Cirri long, stout, with 30-58 cirrals, the longest rarely twice as long as wide. Brachials smooth (finely spinose in some small specimens). Arm length reaches 25 cm. No rudimentary comb on oral pinnules. [Distinguished from Florometra by size only.] [details]